2130040023 has 4 divisors (see below), whose sum is σ = 2840053368. Its totient is φ = 1420026680.

The previous prime is 2130040019. The next prime is 2130040069. The reversal of 2130040023 is 3200400312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2130040023 - 2² = 2130040019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2130039984 and 2130040011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130040123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355006668 + ... + 355006673.

It is an arithmetic number, because the mean of its divisors is an integer number (710013342).

Almost surely, 2^2130040023 is an apocalyptic number.

2130040023 is a deficient number, since it is larger than the sum of its proper divisors (710013345).

2130040023 is an equidigital number, since it uses as much as digits as its factorization.

2130040023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710013344.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2130040023 is about 46152.3566353875. The cubic root of 2130040023 is about 1286.6564099412.

Adding to 2130040023 its reverse (3200400312), we get a palindrome (5330440335).

The spelling of 2130040023 in words is "two billion, one hundred thirty million, forty thousand, twenty-three".